Compensating bearing for machine-spindles.



1\10.s51,t)05. PATENTED APR. 23, 1907.

B. w. HANSON. GOMPBNSATING BEARING FOR MACHINE SPINDLBS.

APPLICATION FILED OCT.2.1905.

'. 2 SHBETSSHEET 1.

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PATENTED APR. 23, 1907.

B. M. w. HANSON. GOMPBNSATING BEARING FOE MACHINE SPINDLES.

APPLICATION FILED 0012,1905

2 SHEETS-SHEET 2.

' 2 the spindle after the .co

ITED PA.

I), CONNECTICUT, TFORD, con

BEN GT M. W. HANSON, OF HARTFOR ASSIGNOR TO PRATT & WHITNEY COMPANY, OF HAR i OENEW JERSEY.

COMPENSATINGBEARING FORHMACHINE-SPINDLES.

Specification of Letters Patent.

Application filed October 2,1905. Seri a1No.280,907.

providedwith a re sion 6 internally threaded at-fi the thread of the spindle and with a'x'conical seat 6 tofit the end-4 of. said spindle.

hollow cap Sis fitted upon thelextension 6 and the end 8 7. Screws 10, threaded into the hub, serve to clamp the inner'end of said cap against the tool and to forlce said tool against the flange-6, as shown in lg. 3. Secured to the slide 1 are brackets 12 and 13, and rising from the bases 12- 13 of said blocks-are standards each standard having opening into a ach sta'nclard 1s also "'1'0 (ZZZ. whom it may concern: I

Y Be it known that I, BE GT M. W. HANSON, a citizen of Sweden, who have declared n1 intention of becoming a citizen of the United States, residin atHartford, in the county of. Hartford and ftatjeof, Connecticut, have in-f vented certain I ew and useful Improvements 'in'Compensating Bearings for Maehine-S pindies,- of which the following is a specification.

This invention relates to means for auto- Inatically alining niachine-spirulles, and more particularly those carrying tools of grinding and milling machines, in which correct positionof the spindle must always be main- 1 5 tained in order that accurate Work may be produced;

Ainong he severalobjects of theinvention hereinafterset forth one of importance is the provision of improved means for so supporting the spindle that it will automatically be brought to a true position should irregularities inthe running thereof exist.

A further ob j ect of the invention is the provision of DIOMISTOI securing the supports for rrect alineinent of the In the accompanying drawings, Figure 1 is an end vievv of-the tool slide of a grinding -mac hine to which the invention is applied Fig; 2 is a plan View of the tool-slide of a. grinding-n1achine,with the invention shown in place thereon. Fig. 3 is a horizontal sec.- tion takenon line 3 30f Fig. 1 looking in the direction of the arrow. Fig. 4is a longitudi- 3 5 nal vertical section on line-4 4 of Fig. Fig. e ofthe bearing brackets 5 is a side'view of on chine, andFig. 6 anend a tubular bearing 14,

is formed, "with perforated vertical boss 16 rising base-plate at the opposite longitu(finally-perforated' b top. Depending from th these bearing-bl from oss 17 along i-ts e has ocks aretubular studs 18, which are received in of the orossslide.' (See Fig. through each bearing ld is a swivel-bolt 20, having a reduced and externally-threaded extension'.20, which engages threaded seat 21 in the end of a bearing 22', said bearing being provided with a rabbeted journal 22, ditting'into the chamber 14 aforesaid. As a pairofthese bearings isillustrated and as each is alike, both are de same numerals; i In each bearing 22 groove 22*,fed'fro1n the fitted in each bearing is a tapered bore-said sleeve being threaded at 24 at one end and rabbeted at 24? at its opposite. extremity. A dust-cap 2" .receive the shaft 4, is fitted on the rabbeted end of the sleeve 24, a engages the thread 11 1, said nut being {-ternally threaded at 26.

this nut is aeap 27, intern betweenthe c or blocks of the ma View of said bearing-bracket.

' Like numerals designate similar throughout the several views. I

Referringto the drawings, thenunleral 1 designates the-slide of a grinding or analo' gous machine, said slide being mounted on Ways? ofthe bed 3.

Designated by 4 is'the spindle of the machine, said spindle carrying a belt-pulley 5 and having a conical bearing 4 and a'reduced 27", and-fitted and threaded extension 4 To the end of 26 and tl'ie'inner wall of spindle 4 is secured a hub 6, having a flange l. flange 28 of an internally reversely tapered 5o 6 on itsinner side, against whic'hislittedthe split box 28,-as illustratedin Fig. 3 reducing-tool employerL-ior instance, the or lost motion may bereadily taken grinding-disk 7. This hub is chambered at adjusting the split box 6 for a purposes l and cap mentioned, van

usual cup .23.v and parts 4 5 1 Threaded upon rid; of the nut con to be described and is d true running con- .nnroFFIo nsorrour, A CORPORATION dueed cylindrical exten t a e thereof bears a ainst the tool' it passmgthroug the cap and o, perforated. to

Patented April 1901-" i l i as .A

12 13 respectively,

n enlarged end chamber 14 7 a shorter end and with a 1 1 P at swiveling? sockets 1'9 6.) Passing sign'ated by the sleeve 24,l1aving a I ally grooved atv ioo said cap is the end- Wear p y by means of the nut tact of shaft 4, passing "the pair of boxes 28, will thus be assured." Through the bases 12 'and 13 and the .tubularbosses 18- 'ing a threa ed end'31, adapted to engagea seat 32 in the bearing, 22, and inthe per- 22. Each of said. bolts 31 and 33 is of-less;

diameter than the bore in which it is fitted,

and consequently a slight rocking movement of each bearing 22' is permitted in the blocks" 12 and 13 to enable the shaft 4 to center itself in a vertical plane. lar boss 16 of each standard a bolt 35 is passed and is threaded at its inner end into a part of the slidel, and through the diagonallyopp'osite corner of each block 12 and '13 a bolt 36 is passed and is threaded into the bed, said bolts being of less diameter than the bores in which they are fittedwto thus enable the blocks tohave a slight horizontal movement around the swivel-bolts 29 29.

At its outer end each swivel-bolt is. shouldered at 20 and above the shoulder is.

provided with' a hexa onal head 20*, by

which it may be manipu ated. I 4

When the spindle 4 is started in'rotation, all the bolts just described are loose, and an opportunity is therefore given for the spind e to center itself in correct running position. After this result has been accom-y plishedthe bolts are screwed home and all of the parts are locked firmly in place, so 1 that there can be no movement of any of them. Should wear of the s indle take place, this is readily corrected yactuating 5, the split sleeve 28 by means of the nut'26 and- ,ca 27.; This cap 27- also, likethe cap 25, serves as a dust-guard to prevent the entrance of foreign matter to the bearing, while the chambered hub 6 serves a similar purposein -surroundin the end of the ca 25.

Having t us described the invention, what Iclaim is 3 1. The combination, with blocks, having j chambered standards, of bearings having 'I ends fitted within' the chambers of the forations' of the standards, and into the bearings; a spindle; boxes carried by the bearin s; and in which boxes the spindle is (69, journaled-i and means for taking up wear of secured to the support, and passing through the bases of the blocks; bearings having jour- 1 anda shaft journaled in saidboxes.

foration 30 is a bolt 33, having athreaded end 33', engaging a seat 34 in the bearing -1 than said perforations inserted into the bear- Through the'tubutapered peripheries fitted insaid sleeves; a,

standards; swivel-bolts-passing through perswivel-bolts; boxes momited the bearings; and a spindle journaled in the boxes.

The combination, with a support, of; blocks having standards the latter provided with chambers in their ends; swivel-bolts 7o nals mounted'for swivelingaetion on the standards; boxes mounted in the bearings;

. a i 4. The combination, with 'a: slide, of blocks each having a vertical standard pro -l vided with ';a series of perforations; bear n V mounted onthe standards, and .movab e with relation-thereto; bolts of less diameter ings; a swivel-bolt located in an :intermediate perforatiomfand also connected to each lbearing; means 'whereby the blocks may have a 'limitedimovement in a-.horizontal.8: plane; and wh n supported ,by'the bear- H in s. v 21 5. The combination, with-a slide, ,jof" blocks each'having a vertical standard, and; swiveleduponsaid slide swivel-b olts mount-. ed in perforations of the standards bearingvboxes connected to s idvswivel-boltsymeans for .permittinglimit d rotary movement of the standards; sleeves inserted in said bearin s, and having tapered bores; s lit, externa ly-tapered boxes flanged at t jeir inner ends, and fitted in the sleeves; means for taking 'u'p'wear ofsaid split boxes a i I shaft 'ournaled in the split boxesg 6;lhe? combination, .with" a, "'"slide, of] blocks swiveled -u on said 'slide,'. and each havin 'a seris'of ores; means forlbcking" said b ocks against swivelin action on the .slides I bearings having tubu ar bosses fitted in chambers of the standards; bolts of'less .1 5 diameter than the perforations through which the are passed for securin the bearings to t 0" standard"; swivel-b0 ts pas'sed' through the intermediate perforations of the standards, and'threaded-into the tubular bosses of the bearings ;'s'leeves carrie by the bearings, and each havingpln internally taperedwall; split boxes wit externallyshaft journa ed in said boxes and means for adjusting'the boxes to take npwe' 7. The combination, with a b'e'a A s d with means whereby 'it ma be universally adjusted of a sleeve-inserts 'in'saidbearing' andhaving an internally-tapered-wall, said sleeve being rovid'ed with'arabbet -atonci; end, and witfi an external thread at its op'ef posite extremity; a nut in engagement with the threaded end of the'sleeve, and having eenooe :3

8. The combination, with .e .Islide, of l ards; means for locking the bearings to said blocks rovided with perforated standards, standards; and a spindle journa ledin the and Wit fiat bases secured to said s1ide,'eech bearings. of said bases having perforations; bolts of 5 gasls dbiameter than (:iseid ktierfiogetione, seild. in presence of two witnesses.

0 ts ein connecte to t e si e; & sWive bolt passi g through each base, and entering BENGlT WI HANSON the slide; bearings swivel-bolts connecting Witnesses: v the bearings andstandards; bolts of less di- E. C.-BENEDICTZ 1'0 ameter than the perforations in the stan5i- J. W. JOHNSON.

In testimonywhereof I effix my Signet ure 

